Results 51 to 60 of about 101 (82)

Multitone Jamming Rejection of Frequency Hopped OFDM Systems in Wireless Channels

2012 IEEE Vehicular Technology Conference (VTC Fall), 2012
This work considers the bit error rate (BER) performance of orthogonal frequency division multiplexing (OFDM) frequency hopping (FH) systems in the presence of Multitone jamming (MTJ) and multipath fading. Analytical and simulation results confirmed that optimum jamming strategies require channel and signal power side information.
Arafat Al-Dweik, Abdallah Shami
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Multitone jamming rejection of FFH/BFSK self-normalizing receiver

IEEE Military Communications Conference. Proceedings. MILCOM 98 (Cat. No.98CH36201), 2002
A computationally efficient bit-error rate (BER) expression for a fast frequency-hopped binary frequency shift-keying (FFH/BFSK) spread-spectrum (SS) communication system is derived based on Taylor-series expansion. The FFH system employs a soft-decision self-normalizing receiver against the worst-case multitone jamming (MTJ) and additive white ...
K.C. Teh, A.C. Kot, K.H. Li
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Performance of Differential Frequency Hopping System under Multitone Jamming

2006 Asia-Pacific Conference on Communications, 2006
Differential Frequency Hopping (DFH) is a novel technique for the frequency-hopping system in HF (High Frequency) bands. The frequency transition function (FTF) and the signal detection methods are the key issues for DFH system. Symbol-by-symbol detection and sequence detection are adopted in DFH system.
Zhi Chen, Shaoqian Li, Binhong Dong
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Performance analysis of an FFH/BFSK linear-combining receiver against multitone jamming

IEEE Communications Letters, 1998
A computationally efficient bit-error rate (BER) expression for a fast frequency-hopping binary frequency-shift-keying (FFH/BFSK) spread-spectrum system is derived based on Taylor-series expansion of the central differences. The FFH system employs a soft-decision linear-combining receiver against the worst-case band multitone jamming (MTJ) and additive
Kah Chan Teh, Kwok H. Li, Alex C. Kot
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Performance study of a maximum-likelihood receiver for FFH/BFSK systems with multitone jamming

IEEE Transactions on Communications, 1999
We derive the optimum structure of a maximum-likelihood (ML) receiver for a fast frequency-hopped binary frequency-shift-keying (FFH/BFSK) spread-spectrum (SS) communication system operating in the presence of multitone jamming (MTJ) and additive white Gaussian noise (AWGN). It is shown that the side information of noise variance, signal tone amplitude,
Kah Chan Teh, Alex C. Kot, Kwok H. Li
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Anti-Jam Performance of Fast Frequency Hopped MFSK with Coding against Worst-Case Multitone Jamming

MILCOM 1987 - IEEE Military Communications Conference - Crisis Communications: The Promise and Reality, 1987
Fast frequency hopped (FFH) MFSK with coding can significantly improve anti-jam (AJ) performance against partial band jamming. Multitone (MT) jamming has been shown to be the most effective partial band jamming technique, particularly against higher order M-ary FSK modulation.
B. H. Tanaka, R. L. Yuan
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Optimization of a hybrid SFH/DS MFSK link in the presence of worst case multitone jamming

IEEE Transactions on Communications, 1995
The performance of a hybrid slow frequency hopped direct sequence multiple frequency shift keyed (SFH/DS MFSK) communication link in the presence of partial band multitone jamming is considered. The communication signal is characterized by a DS-spread MFSK signal bandwidth that may exceed the FH slot spacing, and the signal consists of multiple M-ary ...
Maureen A. Laxpati, Jeffrey W. Gluck
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Multitone jamming rejection of FFH/BFSK spread-spectrum system over fading channels

IEEE Transactions on Communications, 1998
Analytical expressions for bit-error probability are derived for a fast frequency-hopping binary frequency-shift keying (FFH/BFSK) spread-spectrum communication system over a fading channel with worst-case band multitone jamming (MTJ) and additive white Gaussian noise (AWGN).
Kah Chan Teh, Alex C. Kot, Kwok H. Li
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Acquisition of DS/FH spread spectrum TTC signals in the presence of multitone jamming

IEEE 10th INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING PROCEEDINGS, 2010
The paper investigates the acquisition performance of DS/FH TTC signals in the presence of multi-tone (MT) jamming. A model describing the impact of MT jamming on signal acquisition is proposed and expressions of both detection and false alarm probabilities are mathematically formulated.
Meng Shengyun, Yang Wenge, Yu Jinfeng, Lu Weitao   +3 more
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Performance analysis of an FFH/BFSK self-normalising receiver under multitone jamming

IEE Proceedings - Communications, 1998
Analytical expressions for bit-error probability are derived for a fast frequency-hopping binary frequency-shift-keying (FFH/BFSK) spread-spectrum (SS) communication system based on Taylor-series expansion. The FFH system employs a soft-decision self-normalising receiver against the worst-case multitone jamming (MTJ) and additive white Gaussian noise ...
K.C. Teh, K.H. Li, A.C. Kot
openaire   +1 more source